Topological Dynamics has its roots deep in the theory of differential equations, specifically in that portion called the "qualitative theory". The most notable early work was that of Poincare and Bendixson, regarding stability of solutions of differential equations, and the subject has grown around this nucleus. It has developed now to a point where it is fully capable of standing on its own feet as a branch of Mathematics studied for its intrinsic interest and beauty, and since the publication of Topological Dynamics by Gottschalk and Hedlund, it has been the subject of widespread study in its own right, as well as for the light it sheds on differential equations. The Bibliography for Topological Dyna mics by Gottschalk contains 1634 entries in the 1969 edition, and progress in the field since then has been even more prodigious. The study of dynamical systems is an idealization of the physical studies bearing such names as aerodynamics, hydrodynamics, electrodynamics, etc. We begin with some space (call it X) and we imagine in this space some sort of idealized particles which change position as time passes.

Inhalt
1 Elementary Properties of Flows.- Notes and Remarks to Chapter 1.- 2 Special Properties of Plane Flows.- Notes and Remarks to Chapter 2.- 3 Regular and Singular Points.- Notes and Remarks to Chapter 3.- 4 Reparametrization I.- Notes and Remarks to Chapter 4.- 5 Reparametrization II.- Notes and Remarks to Chapter 5.- 6 Existence Theorems I.- Notes and Remarks to Chapter 6.- 7 Existence Theorems II.- Notes and remarks to Chapter 7.- 8 Algebraic Combinations of Flows I.- 9 Algebraic Combinations of Flows II.- Notes and Remarks to Chapters 8 and 9.- 10 Fine Structure in $$ {G_r}\left( \varphi \right) $$.- 11 Fine Structure in $$ {G_s}\left( \varphi \right){\text{I}} $$.- 12 Fine Structure in $$ {G_s}\left( \varphi \right){\text{II}} $$.- Appendix A Topology.- Appendix B The Kurzweil Integral.- Appendix C Some Properties of the Plane.- Epilogue.